Just finished my eaton swap on my mach 1. Upon first start it ran good for about 3 or 4 minutes so I took it to get dyno tuned. When at the tune shop it started idling horrible and wanting to die when it gets warmed up. He has a base tune on it but can't fine tune it until I find the issue. It is strange how it gets worse after it warms up... Once warmed up it gets to the point it won't even start. I checked the vacuum lines and dont see any leaks. The iac valve is new I have a sct 2600 maf. I have the 2 outside wires spliced on the connector to go to the iat2/map sensor on the back of the blower. Fuel pressure is good, injectors tested good. Spark plugs have been gapped. I tightened all of the ground wires. I am stumped. Any help or guidance would be appreciated.
